Governor for gas-engines



C. P. HALL. GOVERNOR FOR GAS ENGINES.

APPLICATION FILED SEPT. 13, I920.

Patented Oct. 25, 1921.

2 SHEETS-SHEET I.

1 V64 abtommuqo witness C. P. HALL.

GOVERNOR FOR GAS ENGINES.

APPLICATION FILED SEPT, 13, I920.

Patented Oct. 25, 1921.

2 SHEETS-SHEET 2.

m ii

wir/vsss struction of internal UNITED STATES PATENT OFFICE.

eovmuvon son GAS-ENGINES.

. Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed September 13, 1920. Serial No. 410,080.

- To all whom it may concern:

Be it known that I, CHARLES citizen of the United 'States of America, residing near Highland Springs, in the county of Hanover and State of Virginia, have invented certain new and useful Improvements in Governors for Gas-Engines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which-it appertains to make and use the same.

This invention relates to an improved governor for use in connection with, a gas engine and one object of the invention is to provide a governor so constructed that after the engine .has been started the governor may be employed as 'means for controlling the feeding of the combustible mixture to the cylinders. The motor will thus be prevented from running beyond a desired speed.

Another object of the invention is to so construct this governor that it can be used in connection with, the conventional con"{ combustion engines, the manually operated rod for opening and closing the valve being disconnected from the valve actuating motor has been started.

nother object of the invention is to so construct the governor that it may be actuatedby the belt which operates the cooling fan positioned in front ofthe between the motor and radiator. 7

Another objectof the invention is to provide 'a governor which will be very eflicient in operation and which will be easy to assemble and install.

his lnvention is illustrated in the 'jacb companying drawings wherein igure 1 is a -view in side elevation showing the improved governor in position for use in connection with an internal combus tion engine.

ig..2 is a vertical sectional View through he governor.

Fig.3 is a sectional line 3-3 of Fig. 2. Fig. 4 is a sectional view taken along the line 44 of Fig. 2" Fig. 5 is a sectional view taken along the line 5-5 of Fig. 2.

Fig. 6 is a sectional view taken along the line 6--6"of Fig.

view taken along the P. HALi., a

a fork mechanism after the motor and 24 having enlarged and Fig. 7 is a fragmentary sectional view taken along the line 7-7 0 Fig. 2.

of the motor In a motor of this type it 1s customary to provide abutterfiy valve 3 for the inlet manifold 4, the provided with an actuating stem which is mounted a head 6 having sockets formed therein to receive the fork 7 of an actuating rod 8. This actuating rod 8 extends rearwardly to the drivers seat. and may b 5 upon viously stated it is the tion to permit the speed to be automatically controlled thus making it unnecessary to manually operate the valve. The head 6 of this valve stem 5 is pro: vided with side arms 9 and 9' for engaging an abutment 10 and the side arm 9' carries a screw 11 WlllCll is adapted to engage the abutment 10 the butterfly valve to be controlled. A link 12 is connected with the side arm 9 and this link 12is connected with an arm 13 extendvalve being and thus permits the swing of ing from' a rocker shaft 14 having one end I portion mounted in the bearing bracket 15 portion extending forwardly and journaled in the bearings 16 provided in the upper portion of the governor housing 17. is governor housing 17 is carried by a base 18 which base is provided with side plates 19 secured to the motor y the securing screws 20. One portion 21 of this motorcasing 17 is formed separately from the remainder and hingedly' mounted as shown at 22 thus providing-a door which may be opened when it is desired to have access to the interior of the governor housmg. 4

A web 23 is provided in the base 18 and is provided with a vertically disposed opening threaded upper and lower end portions 25 and 26 thus orming sockets at the upper and lower ends 4 passage 24. A shaft 27 fits into the passage 24 and is provided with a collar 28 positioned in the lower portion of the socket 25 and having anti'friction balls 29 positioned of the thereon and engaged by a gland 30 which is screwed into the socket 25. A plug 31 is screwed into the socket 265 and bearing balls 32 are positioned between this plug and the lower end of the shaft 27; It will thus be seen that the shaft will be permitted a free rotary movement and will be held against longitudinal movemen A beveled gear 33 is mounted upon the shaft 27 above the gland 30 and meshes with which drives the fan.

In order to permit movement to be transmitted to the rocker shaft 14 this shaft has been provided with an arm 39 which extends trolled and thereby permittin into the slot 40 of a head 41 carried by the sleeve 42.. This arm 39 is engaged by a pin 43 and therefore when the sleeve 42 moves upwardly against the action of the spring'44 thearm 39 will be moved and the rocker shaft thus rotated. This spring 44 engaged by a compression screw 45 whlch is threaded through a bearing in the head 46 of the governor housing 17 thus permitting the compression of the spring to be conthe action of the governor to be controlle and the governor prevented from operating to shut off the supply of gas to the motor before desired. The sleeve .vided with a disk 47 which is held in spaced relation to the disk 48 by bearing balls 49. This disk 48 has its under face provided with grooves 50 which are cut to register with grooves or seats 51 formed in the beveled gear'33. The levers 52 are pivotally mounted at the outer ends of the grooves or seats 51 and have their lower arms 53 extending through the seats 51 and provided with. upturned-ends as shown in Fig. 2 so that when the levers 52 swing outwardly the inner end portions of the arms 53 which fit into the grooves or seats 50 will tend to move the disk 48upwardly. Therefore the disk 47 and sleeve 42 will be moved upwardly and as previously explained the shaft 14 rotated. Springs 54 are provided as shown clearly in Fig. 7 to normally retain the levers in the position of Fig. 2 but permit' them to be swung outwardly, by the centrifugal-force created when the governor is 1n operation.

When thisdevice is in use it is installed as shown and when it is desired to start the motor the rod 8 will be moved to bring the fork 7 into engagement with the head 6. The head will be turned to open the butterfly valve and the motor started. After the 42 has its lower end prospring 44 and causlng the .rocker shaft 14 to be rotated. This will cause the head 6 to be turned and the valve shut off a sufficient amount to reduce the speed of the motor.

The tractor will thus be prevented from being damaged by the motor runing at too high a rate of speed. Adjustment of the screw 45 will permit the spring to be placed under any tension desired and thus-the governor prevented from operating to reduce the speed of the motor before desired.- There has thus been provided a governor which can be associated with themotor of a tractor of a conventional construction.

What is claimed is 1. governor for the purpose set forth comprising a housing, a valve actuating shaft extending transversely of the housing and having one end portion journaled therein and extending through the housing, a shaft rotatably mounted in the housing and positioned vertically therein, a gear carried by the vertical shaft, a drive shaft having a gear meshing with the gear of the vertical -shaft, a sleeve slidably mounted upon the vertical shaft, a disk slidably mounted upon the vertical shaft between the gear thereof and. the lower end of "said sleeve-and held against rotation upon the vertical shaft, a

head carried by the sleeve and having a slot formed therein, an arm .extending from the first mentioned shaft and extending into the slot of said head, a shaft carried by the head and extending through a slot-in said -arm, bell crank levers pivotally connected with the gear of the vertical shaft and havmg lower arms extending between the gear and disk-mounted upon the vertical shaft,- the bell crank levers having. weighted upper arms swung outwardly to. raise the lower arms by centrifugal force, and resilient means yieldabl holding the upper arms against outwar movement.

2. -A governor for a gas engine valve comprising a housing, a driven shaft rotatably mounted and positioned verticall in the housmg, a gear upon the shaft, a s eeve loosely mounted upon the shaft above the gear, a'

disk carried by the lower end portion of the sleeve, a disk slidably mounted upon the shaft between the gear and disk of said-sleeve and held against rotationupon the shaft. weighted levers pivotaly connected with the gear and having lower arms extending between the gear and last mentioned sleeve for moving the sleeve upwardly when the weighted levers are swung outwardly by centrifugal force, means yieldably retaining the levers against outward movement, resilient means yieldably holding the sleeve against upward movement, a valve actuating shaft extending through the housing and having an arm connected with the sleeve, and means for transmitting rotary movement to the vertical shaft through the medium carried thereby.

3. A governor for a comprising a housing, a valve actuating shaft extending transversely through the housing, an arm extending from the shaft, a driven shaft positioned vertically in the housing and rotatably mounted, a sleeve slidably mounted upon the vertical shaft said arms connected therewith for imparting rotary movement to the valve actuating shaft when the sleeve moves vertically, a gear carried'by the vertical shaft, a disk slidably mounted upon the vertical shaft between the sleeve and gear and held against rotation upon the shaft, the disk and gear being provided with radially extending grooves, levers pivotally connected withthe gear and having arms extending through the grooves of the gear and terminating in upturned end portions fitting into the grooves of the disk a spring for yieldably holding the sleeve against vertical movement, means for compressing said spring to retain the same at a predetermined tension, and means yieldably holding said levers against outward swinging movement.

i. A governor for a gas engine valve comprising a housing, a valve actuating shaft extending transversely of and journaled in the housing, an arm extending from the shaft, a driven shaft positioned vertically in the housing and rotatably mounted, a sleeve loosely mounted upon the driven shaft, a gear carried by said driven shaft, a disk positioned between the sleeve and gear, bell crank levers pivotally connected with the gear and having arms extending between the gear and disk, springs connecting the upper end portions of the bellcrank levers to yieldably hold the same against outward movement when said gear is rotated, a head carried by the sleeve and having said arms connected therewith, and resilient means positioned'in the housing and engaging said gas engine valve and having head to yieldably hold the sleeve against vertical movement.

5. A governor for a gas engine valve comprising a housing having a base and a body carried thereby and having one section hingedl mounted to provide a. door, a driven shaft positioned vertically in the housing and having its lower portion extending into a vertical passage formed in the base, a movable bearing element carried by the base and engaging the shaft to retain the same in the passage of the base, a gear carried by the shaft, a sleeve slidably mounted upon the shaft, a head carried by the housing, an abutment screw carried by the head, a spring positioned between the abutment screw and sleeve and placed under tension by said screw, a valve actuatin shaft extending through the housing and having an arm connected with the sleeve for imparting movement to .the valve actuating shaft when the sleeve moves, vertically, a disk slidably mounted upon the driven shaft between the sleeve and gear and held against rotation upon the driven shaft, weighted levers carried by the gear and engaging the diskto move the same upwardly when the levers are moved outwardly by centrifugal force, and yieldable means retaining the levers against outward swinging movement.

6. A governor for an internal combustion engine valve comprising a housing, a valve actuating shaft, means for connecting one end portion of the shaft with a valve mechanism, an arm carried by said shaft, a driven shaft rotatably mounted in the housing, a sleeve loosely mounted upon the driven shaft for longitudinal movement thereon and having connection with the arm of the valve actuating shaft for imparting rotary movement thereto when the sleeve moves longitudinally, means for impartin rotary movement to the driven shaft inc uding a gear mounted thereon, bell crank levers carried by the gear for imparting sliding movement to the sleeves, means for yieldably holding the sleeve against slidin movement, and

means for yieldablyholdlng the bell crank levers against outward movement under the centrifugal force of rotation.

In testimony whereof I have hereunto set 111 hand.

y CHARLES P. HALL. 

